Ystrad Mynach Wind ForecastUnited KingdomWLCaerphillyYstrad Mynach1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Ystrad Mynach wind forecast issued today at 12:10 pm. Next forecast at approx. 12:10 am.Ystrad Mynach Wind Statistics November WindSt-athan (29km)2025OctoberNovemberStrongest 1 November, 202522.4mph SWAverage November13.4mphStrongest 24 October, 202526.8mph WSWAverage October6.9mphStrongest 16 April, 202535.8mph WAverage 20257.8mphClimate (2011–Present)St-athan (29km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202447mph WAverage 2020–20257.7mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average November27.5%15%2.5%CalmNear GaleNovember Wind RoseNovember (5 Year Average)5 Year Average Annual5 Year Average November22.5%12.5%2.5%CalmNear GaleGet WillyWeather+ to remove ads